CN114341589B - Pyrotechnic squib and method for manufacturing pyrotechnic squib - Google Patents
Pyrotechnic squib and method for manufacturing pyrotechnic squib Download PDFInfo
- Publication number
- CN114341589B CN114341589B CN202080062614.6A CN202080062614A CN114341589B CN 114341589 B CN114341589 B CN 114341589B CN 202080062614 A CN202080062614 A CN 202080062614A CN 114341589 B CN114341589 B CN 114341589B
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- CN
- China
- Prior art keywords
- liquid crystal
- display device
- crystal display
- housing
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/195—Manufacture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
- F42B3/125—Bridge initiators characterised by the configuration of the bridge initiator case
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Air Bags (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to a pyrotechnic squib (2) having a housing (4), an ignition charge (10) enclosed in the housing, at least two connection contacts (8) connected to the ignition charge, wherein the connection contacts exit the housing via glass guide channels (14), characterized in that the connection contacts have a circular cross-sectional profile in the area of the ignition charge and have an angular cross-sectional profile outside the housing.
Description
Technical Field
The present invention relates to a pyrotechnic squib and a method for manufacturing a pyrotechnic squib.
Background
Pyrotechnic squibs are well known and widely used in the industry. In particular in safety-critical automotive applications, triggering of belt tensioners, airbags, circuit breakers and the like is often effected pyrotechnically. The squib may be used as a gas generator or a propellant charge. Particularly for the breaking of current carrying electrical conductors, a sufficiently high breaking energy is required to ensure a safe breaking of the conductor in the event of a crash. Due to the widespread use of pyrotechnic squibs, a manufacturing method has been established in which the ignition charge is sealingly arranged in a housing and is ignited by means of two wire contacts which are led to the outside through glass guiding channels. In this case, the ignition contact is linear and circular.
This is problematic for the use of pyrotechnic squibs in recent applications, for example in pyrotechnic mechanical disconnect switches for automotive electrical devices. For wiring of motor vehicles, connector geometries designed for angle pins are known and used. Thus, these are incompatible with conventional pyrotechnic squibs.
Disclosure of Invention
It is therefore an object of the present invention to provide a pyrotechnic squib that can be used with an electronic connector housing.
According to the invention, this object is achieved by an ignition squib and a method.
The construction of pyrotechnic squibs is well known. The glass squib is contained in a sleeve/ring. The connection contact is guided through the glass squib. During the melting process, the glass squib melts, so that the glass is held tightly against the connection contact. A cap is welded to the sleeve/ring and an ignition charge is located inside the cap and is connected to the connection contact. The glass guide channel together with the cover and the sleeve/ring form the housing of the squib, which sealingly encloses the ignition charge. The seal protection is in particular liquid and/or gas-tight.
The connection contact is electrically connected to the ignition charge in the housing, so that the ignition charge can be triggered by an electrical ignition pulse and exploded. The gas-tight and/or liquid-tight glass guide channel ensures that the ignition charge does not come into contact with moisture even over a long service life and is therefore always available.
In order to be able to use the squib with a conventional plug connector for automotive applications, it is proposed that the connection contact has a circular cross-sectional profile in the region of the ignition charge and that the connection contact has an angular cross-sectional profile outside the housing. The term "angle" is understood in particular in the sense that at least two side edges in the cross-sectional profile extend parallel to one another. Here, a certain ovality may be present in the transition to the adjacent side edge.
According to one embodiment, it is proposed that the connection contact is formed by a round wire and is plastically deformed outside the housing. By plastic deformation, for example by pressing, the circular cross-sectional profile can be deformed at least along the two side edges, so that it becomes angular.
According to one exemplary embodiment, it is proposed that the connection contacts have a first contact distance relative to one another in the region of the glass guide channel and a second contact distance relative to one another outside the housing, which is greater than the first contact distance. Thus, the connection contacts can be spread apart and have a greater distance from each other. Thus, the contact can be inserted into an opening provided in the connection plug.
According to one embodiment, it is proposed that the connection contacts extend straight and parallel to one another in the glass guide channel, and in the middle section outside the glass guide channel at an angle to one another and again straight and parallel to one another in the end sections. Outside the glass guide channel and the housing, the connection contacts are deformed in such a way that they point away from each other. However, the connection contacts can be deformed again in their end sections such that they extend straight and parallel to one another.
According to one embodiment, it is proposed that the connection contact is guided through two glass guide channels facing one another. On the housing, glass guide channels may be provided on the cover and the base, respectively. The connection contacts can each be guided through one of the two glass guide channels.
According to one embodiment, it is proposed that the connection contacts are bent outside the glass guide channel in a manner pointing away from each other. When reference is made herein to the outside of the glass guide channel, this always refers to the connecting contact region on the side of the glass guide channel facing away from the ignition charge.
According to one embodiment, it is proposed that the bending starts at a distance from the glass guide channel of at least the radius of the connection contact. During the production process, the linear connecting contacts are arranged in parallel to one another in the glass guide channel. The bending must not place mechanical stress on the glass guide channel, which might otherwise be broken. To prevent or minimize the effect of bending on the glass guide channel, bending of the connection contacts is only started at a distance from the glass guide channel. The distance preferably corresponds at least to the radius of the connection contact. In this way, bending moments and/or bending stresses can be absorbed sufficiently and deformation of the connection contacts in the glass guide channel can be avoided.
According to one embodiment, the glass guide channel has a glass squib and a support ring. During the manufacturing process, the glass squib is melted and the melted glass clings to the connection contacts. The cover of the housing is arranged in a material-bonded manner at the support ring, in particular welded thereto. The ignition charge is disposed inside the cap. The connection contacts are shorted to each other by ignition wires extending inside the ignition charge. The electrical ignition pulse flows through the ignition wire, which heats up due to the ignition pulse, igniting the ignition charge.
According to one embodiment, it is proposed that the connection contact is guided in the connection housing on the side of the glass guide channel opposite the ignition charge. The ignition squib may have a housing containing an ignition charge. Furthermore, a further housing can be provided, in which the connection contacts are guided and which is shaped as a mating surface. The mating face is adapted to the mating contact to be assembled and is insertable therein. Within the connection housing, the connection contacts can be guided and bent.
According to one embodiment, the connection housing is made of plastic, in particular injection molded. The connection housing is molded onto the support ring.
According to one embodiment, it is proposed that the angular cross-sectional profile is formed by two longitudinal edges extending parallel to one another and two transverse edges facing one another, wherein the transverse edges are formed as an arc, in particular as a convex arc. In the cross section of the connection contact, it may be approximately elliptical and have two lateral edges extending parallel to one another. This is to be understood as angular.
Another aspect is a method of making a pyrotechnic squib. In this case, a housing is first provided with a wrapped squib having at least two connection contacts guided out of the housing via a glass guide channel. The squib is then mechanically fixed and the connecting contacts are mechanically deformed outside the housing on the side of the glass guide channel opposite the ignition charge such that the connecting contacts have an angular cross-sectional profile outside the housing.
According to one embodiment, the angular cross-sectional profile is obtained by pressing.
Furthermore, the connection contacts can be bent apart outside the housing. In this case, for example, the connection contacts can be fixed and bent apart at their free ends. The fastening part preferably bears directly against the glass guide channel and thus prevents forces introduced by bending from reaching the glass guide channel.
Drawings
Hereinafter, the present invention is explained in more detail with reference to the drawings showing embodiments. In the figure:
fig. 1a, 1b show a longitudinal section through a pyrotechnic squib in accordance with a first embodiment;
FIGS. 2a, 2b illustrate a pyrotechnic squib in accordance with another embodiment;
figures 3a, 3b show cross-sections of connection contacts;
FIG. 4 shows a view of a pyrotechnic squib;
fig. 5 shows a flow of a method according to the invention.
Detailed Description
Fig. 1a shows a pyrotechnic igniter 2 in a side view. The pyrotechnic igniter 2 has a housing 4 and a connection housing 6. The connection contacts 8 lead out of the housing 4 and the connection housing 6. The pyrotechnic charge is enclosed in a housing 4. The connection housing 6 accommodates and brings out the connection contacts 8 led out of the housing 4, as shown in fig. 1 b.
In fig. 1b, the housing 4 is shown in a sectional view. The housing 4 comprises a two-layer cover formed by an outer insulating layer 4a and an inner metal layer 4 b. Inside the cap is an ignition charge 10, which may also be formed by an ignition charge 10a and a propellant charge 10 b. The metal layer 4b of the cover is welded circumferentially to the ring 12. The ring 12 accommodates a glass guide channel 14. In the glass guide channel 14, the two connection contacts 8 are guided extending parallel to one another.
To manufacture the housing 4 including the ignition charge 10, the ring 12 is first fitted with a glass squib.
The connection contact 8 is passed through the glass squib.
The glass of the glass squib melts and bears against the connection contacts 8 inside the ring 12, so that an airtight connection is formed. On the inner side of the housing 4, the connection contacts 8 are electrically short-circuited to each other by ignition wires. The ignition wire extends through ignition charge 10, and in particular ignition charge 10a.
The cap is placed over the ignition charge 10, in particular first with the metal layer 4 b. The metal layer 4b is welded around the ring 12, for example by laser welding. Subsequently, the insulating layer 4a is placed and the connection housing 6 is overmolded around the "bare" igniter. The squib can now be used. By means of the cover and the glass guide channel 14, the ignition charge 10 is hermetically shielded, thus hermetically and/or liquid-tightly sealing the package from the environment.
For further application, the connection housing 6 is molded onto the housing 4, for example by injection molding.
In fig. 1b, it can be seen that the connection contacts 8 extend parallel to one another in the glass guide channel 14. On the side of the glass guide channel 14 opposite the ignition charge 10, the connection contacts 8 are bent apart, but extend parallel to one another outside the connection housing 6.
Fig. 2a, 2b show essentially the same elements, wherein the connection housing 6 according to fig. 2b is provided with an O-ring 6a to enable the connection housing to be inserted into a socket in a fluid-tight manner if necessary.
Unlike fig. 2a, in fig. 2b the bending of the connection contacts 8 is discontinuous, so that the connection contacts 8 are angularly distanced from each other by V.
The squib 2 is fixed to the connection contacts 8 before or after the connection housing 6 has been injection molded. For this purpose, the connection contact 8 can be fixed by means of a clamp directly above the glass guide channel 14. Next, the pressing tool can press the end region of the connection contact 8, which in the finished product is located outside the connection housing 6, so that a cross-sectional profile is formed as shown in fig. 3a, 3 b.
Fig. 3a shows a cross-sectional profile of the connection contact 8 in the glass guide channel 14. It can be seen that the connection contacts 8 are circular. This is due in particular to the use of connecting wires for connecting the contacts 8.
As shown in fig. 3b, the contact head 8 is produced with an angular cross-sectional profile outside the connection housing by extrusion. It can be seen that the two opposite side edges 8a extend parallel to each other. The short edges may also extend parallel to each other, but may also be convex. In fig. 3b, it can be seen that the connecting contact 8 has a certain ovality in its cross-sectional profile, which can also be understood to be angular within the meaning of the invention.
Fig. 4 shows a diagram of the squib 2. It can be seen that the connection contacts 8 are formed as flat parts outside the connection housing 6. This is done by pressing the connection contacts 8 by means of a pressing tool.
Fig. 5 shows a flow of a method according to the invention. First, the squib 2 (20) is provided. Subsequently (22), the squib 2 is secured with the clamping arm, for example by securing the connecting contact 8 directly at the outlet of the glass guide channel 14. After the connection contacts have been fixed, the end regions of each respective connection contact 8 are pressed (24) with a pressing tool. The pressing tool may have lateral limit slides so that the connection contacts 8 have a defined width after pressing.
After step 24 or before step 24, the outward bending of the connection contacts 8 may be performed in step 26, as shown in fig. 1b and 2 b.
Injection molding of the connection housing 6 may then be performed in step 28.
Description of the reference numerals
2. Ignition tube
4. Shell body
6. Connection shell
8. Connection contact
10. Ignition charge
12. Ring(s)
14. Glass guide channel
16. Ignition wire
20. Providing
22. Fixing
24. Extrusion
26. Expansion of
28. Overmolding
Claims (17)
1. Pyrotechnic squib (2) with
-a housing (4),
-an ignition charge (10) encased in the housing (4),
at least two connection contacts (8) connected to the ignition charge (10),
wherein the connection contact (8) is led out of the housing (4) via at least one glass guide channel (14),
-wherein the first and second heat exchangers are arranged in parallel,
-the connection contact has a circular cross-sectional profile in the area of the ignition charge (10) and the connection contact (8) has an angular cross-sectional profile outside the housing (4) such that the connection contact (8) having an angular cross-sectional profile matches a connector geometry designed for an angular connection pin.
2. Pyrotechnic squib (2) according to claim 1,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the connection contacts are formed by round wires and are plastically deformed outside the housing (4).
3. Pyrotechnic squib (2) according to claim 1,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the connection contacts (8) have a first contact spacing relative to each other in the region of the glass guide channel (14) and a second contact spacing relative to each other outside the housing (4), the second contact spacing being greater than the first contact spacing.
4. Pyrotechnic squib (2) according to claim 1,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the connection contacts (8) extend straight and parallel to each other in the glass guide channel (14) and in an intermediate section outside the glass guide channel (14) at an angle to each other and in end sections parallel to each other.
5. Pyrotechnic squib (2) according to claim 1,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-guiding the connection contacts (8) through two mutually opposite glass guiding channels (14).
6. Pyrotechnic squib (2) according to claim 1,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the connection contacts (8) are bent outside the glass guide channel (14) in a manner pointing away from each other.
7. Pyrotechnic squib (2) according to claim 6,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the bending starts at a distance from the glass guiding channel (14) of at least the radius of the connection contact (8).
8. Pyrotechnic squib (2) according to claim 1,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the glass guide channel (14) has a glass squib and a support ring (12), the cover of the housing (4) being arranged in a material-bonded manner at the support ring (12), and the ignition charge (10) being arranged inside the cover.
9. Pyrotechnic squib (2) according to claim 8,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-guiding the connection contact (8) in the connection housing (6) on the side of the glass guiding channel (14) opposite to the ignition charge (10).
10. Pyrotechnic squib (2) according to any one of the preceding claims,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-the connection housing (6) is made of plastic and/or the connection contacts (8) are bent in the connection housing (6).
11. Pyrotechnic squib (2) according to claim 10,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-injection moulding of the connection housing (6).
12. Pyrotechnic squib (2) according to claim 9,
it is characterized in that the method comprises the steps of,
-the connection housing (6) is molded onto the support ring (12) and the glass guide channel.
13. Pyrotechnic squib (2) according to claim 1,
it is characterized in that the method comprises the steps of,
the angular cross-sectional profile is formed by two longitudinal edges extending parallel to one another and two transverse edges opposite one another, wherein the transverse edges are formed in an arc shape.
14. Pyrotechnic squib (2) according to claim 13,
it is characterized in that the method comprises the steps of,
-said transverse edge is formed as a convex arc.
15. Method for producing a pyrotechnic squib (2), having the following steps:
firstly, an ignition squib is provided (20) enclosed in a housing (4), said squib having at least two connection contacts which are guided out of the housing via a glass guide channel,
-then mechanically fixing (22) the squib (2),
-mechanically shaping (24) the connection contacts (8) outside the housing (4) such that they have an angular cross-sectional profile outside the housing (4) such that the connection contacts (8) having an angular cross-sectional profile match a connector geometry designed for angular connection pins.
16. The method according to claim 15,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-shaping (24) by pressing.
17. The method according to claim 15,
wherein, the liquid crystal display device comprises a liquid crystal display device,
-bending the connection contacts (8) away from each other outside the housing (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019123755.6 | 2019-09-05 | ||
| DE102019123755.6A DE102019123755A1 (en) | 2019-09-05 | 2019-09-05 | Pyrotechnic squib and method for producing a pyrotechnic squib |
| PCT/EP2020/067312 WO2021043455A1 (en) | 2019-09-05 | 2020-06-22 | Pyrotechnic squib and method for producing a pyrotechnic squib |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114341589A CN114341589A (en) | 2022-04-12 |
| CN114341589B true CN114341589B (en) | 2023-09-22 |
Family
ID=71120179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080062614.6A Active CN114341589B (en) | 2019-09-05 | 2020-06-22 | Pyrotechnic squib and method for manufacturing pyrotechnic squib |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11480415B2 (en) |
| EP (1) | EP3997412B1 (en) |
| KR (1) | KR102423717B1 (en) |
| CN (1) | CN114341589B (en) |
| DE (1) | DE102019123755A1 (en) |
| MX (1) | MX2022002246A (en) |
| WO (1) | WO2021043455A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020004934A1 (en) * | 2020-08-13 | 2022-02-17 | Auto-Kabel Management Gmbh | Gasket for an electric cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172497A (en) * | 1991-12-24 | 1993-07-09 | Uchihashi Estec Co Ltd | Ignition component for electric igniter |
| JPH05220380A (en) * | 1992-02-17 | 1993-08-31 | Nichiyu Giken Kogyo Kk | Squib and its production |
| DE4429175A1 (en) * | 1993-08-25 | 1995-03-02 | Ems Patvag Ag | Encapsulated electrical ignitor (fuze) having an integrated overvoltage suppressor for a gas generator |
| FR2868833A1 (en) * | 2004-04-07 | 2005-10-14 | Ncs Pyrotechnie & Tech | Electro-pyrotechnic initiator for motor vehicle, has cap with pyrotechnic charges that are ignited by heat resistant wire which is welded through its ends on electricity conducting plates of printed circuit plate, on single assembling chain |
| CN101595363A (en) * | 2006-11-28 | 2009-12-02 | 肖特股份公司 | The ignition installation that is used for pyrotechnic protection equipment |
| CN101941410A (en) * | 2009-07-03 | 2011-01-12 | 奥托立夫开发公司 | Electricity pyrotechnics firing device and manufacture method thereof |
| DE102011107852A1 (en) * | 2011-07-01 | 2013-01-03 | Trw Airbag Systems Gmbh | Method for manufacturing igniter for ignition device of pyrotechnic gas generator of motor vehicle-passenger protection device, involves connecting resistance wire of lighter with connection element of lighter directly by wire bonding |
| CN103424036A (en) * | 2012-05-16 | 2013-12-04 | Trw空气气袋系统股份有限公司 | Igniter and method for manufacturing an igniter for an inflator |
| CN109017667A (en) * | 2013-10-21 | 2018-12-18 | 天合安全气囊系统有限责任公司 | The method of igniting unit of inflator, inflator, air bag module, Vehicle security system and manufacture igniting unit for inflator |
| DE102017130969A1 (en) * | 2017-12-21 | 2019-06-27 | Trw Airbag Systems Gmbh | Ignition unit, gas generator, gas bag module, vehicle safety system and method for producing an ignition unit |
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| DE2811351A1 (en) * | 1978-03-16 | 1979-09-27 | Dynamit Nobel Ag | METHOD OF MANUFACTURING AN IGNITION PILL FOR ELECTRIC BRIDGE IGNITORS |
| CH643056A5 (en) * | 1978-08-10 | 1984-05-15 | Inventa Ag | ELECTRIC IGNITION DEVICE. |
| US5596163A (en) * | 1993-08-25 | 1997-01-21 | Ems-Patvag Ag | Gas generator igniting capsule |
| DE19639133A1 (en) * | 1996-07-31 | 1998-02-05 | Dynamit Nobel Ag | Water-tight miniature electrical detonation device |
| US6578487B2 (en) * | 2000-12-08 | 2003-06-17 | Special Devices, Inc. | Pyrotechnic initiator with a narrowed sleeve retaining a pyrotechnic charge and methods of making same |
| US6874422B2 (en) * | 2002-10-21 | 2005-04-05 | Schott Glas | Hermetically sealed electrical feed-through device with an oval-cross-sectioned isolated pin in a circular glass seal |
| JP4622605B2 (en) * | 2005-03-18 | 2011-02-02 | タカタ株式会社 | Igniter assembly, inflator, airbag device, and seat belt device |
-
2019
- 2019-09-05 DE DE102019123755.6A patent/DE102019123755A1/en active Pending
-
2020
- 2020-06-22 KR KR1020227008664A patent/KR102423717B1/en active IP Right Grant
- 2020-06-22 EP EP20734175.1A patent/EP3997412B1/en active Active
- 2020-06-22 US US17/635,525 patent/US11480415B2/en active Active
- 2020-06-22 CN CN202080062614.6A patent/CN114341589B/en active Active
- 2020-06-22 WO PCT/EP2020/067312 patent/WO2021043455A1/en active Search and Examination
- 2020-06-22 MX MX2022002246A patent/MX2022002246A/en unknown
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172497A (en) * | 1991-12-24 | 1993-07-09 | Uchihashi Estec Co Ltd | Ignition component for electric igniter |
| JPH05220380A (en) * | 1992-02-17 | 1993-08-31 | Nichiyu Giken Kogyo Kk | Squib and its production |
| DE4429175A1 (en) * | 1993-08-25 | 1995-03-02 | Ems Patvag Ag | Encapsulated electrical ignitor (fuze) having an integrated overvoltage suppressor for a gas generator |
| CH688564A5 (en) * | 1993-08-25 | 1997-11-14 | Ems Patvag Ag | Sealed electric detonator with integrated overvoltage arrester for a gas generator. |
| FR2868833A1 (en) * | 2004-04-07 | 2005-10-14 | Ncs Pyrotechnie & Tech | Electro-pyrotechnic initiator for motor vehicle, has cap with pyrotechnic charges that are ignited by heat resistant wire which is welded through its ends on electricity conducting plates of printed circuit plate, on single assembling chain |
| CN101595363A (en) * | 2006-11-28 | 2009-12-02 | 肖特股份公司 | The ignition installation that is used for pyrotechnic protection equipment |
| CN101941410A (en) * | 2009-07-03 | 2011-01-12 | 奥托立夫开发公司 | Electricity pyrotechnics firing device and manufacture method thereof |
| DE102011107852A1 (en) * | 2011-07-01 | 2013-01-03 | Trw Airbag Systems Gmbh | Method for manufacturing igniter for ignition device of pyrotechnic gas generator of motor vehicle-passenger protection device, involves connecting resistance wire of lighter with connection element of lighter directly by wire bonding |
| CN103424036A (en) * | 2012-05-16 | 2013-12-04 | Trw空气气袋系统股份有限公司 | Igniter and method for manufacturing an igniter for an inflator |
| CN109017667A (en) * | 2013-10-21 | 2018-12-18 | 天合安全气囊系统有限责任公司 | The method of igniting unit of inflator, inflator, air bag module, Vehicle security system and manufacture igniting unit for inflator |
| DE102017130969A1 (en) * | 2017-12-21 | 2019-06-27 | Trw Airbag Systems Gmbh | Ignition unit, gas generator, gas bag module, vehicle safety system and method for producing an ignition unit |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2022002246A (en) | 2022-03-22 |
| US20220299298A1 (en) | 2022-09-22 |
| KR20220040502A (en) | 2022-03-30 |
| US11480415B2 (en) | 2022-10-25 |
| WO2021043455A1 (en) | 2021-03-11 |
| EP3997412A1 (en) | 2022-05-18 |
| CN114341589A (en) | 2022-04-12 |
| DE102019123755A1 (en) | 2021-03-11 |
| KR102423717B1 (en) | 2022-07-21 |
| EP3997412B1 (en) | 2023-12-20 |
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